javac -d $COMPONENT/classes $COMPONENT/src/qp/utils/*.java   -Xlint
javac -d $COMPONENT/classes $COMPONENT/src/qp/parser/*.java  -Xlint
javac -d $COMPONENT/classes $COMPONENT/src/qp/operators/*.java -Xlint
javac -d $COMPONENT/classes $COMPONENT/src/qp/optimizer/*.java -Xlint
javac -d $COMPONENT/classes $COMPONENT/testcases/*.java -Xlint
javac -d $COMPONENT/classes $COMPONENT/src/QueryMain.java -Xlint
